Colorado Cannabis Purchase Limits: What Tourists AND Locals Can Actually Buy (With Equivalency Chart)

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Here’s the short answer: both out-of-state tourists and Colorado residents can buy up to 1 ounce of cannabis per transaction. Same limit. Same rules. For everyone.

We get this question at our counter every single day, and honestly, it makes sense. There’s a lot of conflicting information floating around online. You may have read somewhere that tourists can only buy a quarter ounce. That was an early rule Colorado abandoned years ago, but it’s still showing up on certain websites and Quora threads in 2026. Here’s what Colorado law actually says, from a dispensary that’s been explaining it to visitors since day one.

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The 1-Ounce Rule: What It Actually Means

Per Colorado’s official cannabis regulations, any adult 21 or older can purchase up to 28 grams (1 ounce) of cannabis per transaction. That applies equally to locals, out-of-state visitors, and international travelers.

A few things worth knowing before you walk in:

• This is a per-transaction limit, not a strict daily cap, but cycling through multiple dispensaries in one day to stack up is a gray area you don’t want to test.
• Your limit resets the next day.
• You must be 21 or older with a valid, unexpired, government-issued photo ID.

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Flower vs. Edibles vs. Concentrates: The Equivalency Breakdown

The 1-ounce limit isn’t just about flower. Colorado uses an equivalency system, so whether you’re buying pre-rolls, gummies, or concentrate carts, it all counts toward the same 1-ounce total.

Here’s exactly how it breaks down:

Product Type	1-Ounce Equivalent	Example
Flower	28 grams	8 eighths
Edibles	800mg THC	80 standard 10mg gummies
Concentrates	8 grams	16 half-gram carts

(Source: Colorado MED / cannabis.colorado.gov)

Can You Mix Products in One Purchase?

Yes, and this is the part that surprises most visitors. You can buy flower, edibles and concentrates in the same visit, as long as the combined equivalent stays at or under 1 ounce.

Quick example: a half-ounce of flower (14g) plus 400mg of edibles puts you at exactly your limit. Perfectly legal, one transaction. Our budtenders can walk you through the math in about 30 seconds; that’s genuinely what we’re here for.

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Do Tourists Have Different Purchase Limits Than Colorado Residents?

No. Full stop.

We know you may have read otherwise, that ¼-ounce tourist limit is outdated misinformation that’s still floating around on the internet. According to cannabis.colorado.gov, Colorado’s 1-ounce purchase limit applies equally to every adult 21 and older, regardless of where you’re from. Your out-of-state driver’s license is completely valid. So is your passport.

The rule is the same whether you live in Lyons or you’re from another state, on your way to Estes Park. You’re not getting a reduced limit because you crossed state lines. 

Not sure what to grab before your trip? Talk to our budtenders, they’ll be able to help you find what you’re looking for.

In a rush?  Place an order online and skip the line!

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What ID Do You Need at a Colorado Dispensary?

Any valid, unexpired, government-issued photo ID gets you through our door:

• Driver’s license (in-state or out-of-state)
• Passport
• State-issued ID card

International IDs are accepted as long as they’re current and government-issued. We can’t accept anything expired, no exceptions, regardless of how close to the expiration date you are. If you have any questions before your visit, check our first-time visitor guide for what to expect.

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One Thing Every Tourist Near Rocky Mountain National Park Needs to Know

This part matters, so we’re going to say it clearly.

Rocky Mountain National Park is federal land. Cannabis is illegal under federal law. 

Do not bring cannabis into the park.

It doesn’t matter that you purchased it from a licensed Colorado dispensary. The moment you cross into RMNP, Colorado state law stops applying, and federal law takes over. Possession inside the park can result in federal charges, not a state citation.

If you’re camping or spending the day in the park, consume before you go or store your purchase securely in your vehicle or lodging outside park boundaries. 

We’re the last dispensary stop before the canyon, and that’s exactly why we feel responsible for making sure you know this before you go.

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Before You Head Up the Canyon, Here’s the Full Picture

The numbers to remember:

• 28 grams (1 oz) of flower per transaction
• 800mg edibles equivalent
• 8 grams concentrate equivalent
• Mix and match freely, just keep the combined total at or under 1 oz
• For US residents, Any valid government-issued photo ID, in-state anything out of country requires a passport

Stop in and see us before you head up. We’ll make sure you leave with exactly what you need, and none of the guesswork.

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🛍️ Plan Your Visit to The Bud Depot

Check our daily specials before you visit; we have a deal for each day of the week.
Order online for quick pickup in Lyons, skip the wait, and head straight to the canyon.

The Bud Depot in Lyons is your last stop before Rocky Mountain National Park.

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This content is for informational purposes only and reflects Colorado state law as of the publish date. Laws are subject to change. For legal advice, consult an attorney. Cannabis remains illegal under federal law.

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Frequently Asked Questions