sd topo of nw u.s.
I don't like to "force" things and they don't have any installation instructions.

I had a real problem sticking it in and had to call and wait the half hour until I got someone and then they still couldn't tell me which way was up to stick it in. But I finally figured out that the contacts were up and the writing was down (counter intuitive) because it appeared that the contact points were up on the gps unit on very close inspection (not easy) while I was on the phone with them.

I still had a problem because the card kept springing out and after they told me that the card has to be stuck in all the way until it clicked, I decided to use my finger nail because my bare finger wouldn't press it in that far and then I got it to click in.

You still got to find out that the basic topo has to be turned off to see the topo map. I am not going to go through all the steps but a "big" clue is that you have to go to "info" ("not" just information "lol") after "map" to to turn it off.

The topo is hard to work with and bubbles keep getting in the way and are hard to get rid of without losing your location.

Otherwise it will help you navigate.

Get to the Hunt on time
This product plugged in to my GXC 60 with ease. Following installation, the chip got me to my hunt area and back showing enough contour to let me know the difficulty of the hunt. Great product.

Room for improvement
It beats the heck out of the base map that came with my Oregon 200 but leaves a lot to be desired. Quite a lot of roads & trails in my local forest, (Deschutes) are not shown and some that are shown do not exist. In spite of all the copyrights and warnings it appears to have been taken straight off a Forest Service topo map I obtained from them a couple of years ago. I looked at points of interest and found it had not been updated in several years. Many listed are gone years ago. The city part streets are also about 3 years old. Better then the base map's 10 year old update. I only wish that Garmin would let me correct the errors I know of on my computer then re-load the map on the GPS!

All that being said, The Oregon 200 with the topo map is one heck of a tool for trecking, ATV'ing or driving the forest! Do bring a good compass though! and if you got room in your pocket a paper topo map.

Just Wonderful !
For the first time Garmin is beginning to roll out 24K Topo maps on very convenient microSD cards. ( includes SD card adapter ) No computer needed, just put it in your unit and go. No fuss, no muss !

All I can say is it is about time !

They are starting with the western states and going east. If your state is not covered yet, please be patient. They are all coming.

This is the highest level of mapping detail available for your Garmin unit. They work best on the new Colorado and Oregon series units as you will see see 3-D views and color terrain shading on these units only. Very Nice !!

These are a must have for hikers, geocachers and any outdoor enthusiasts.

Highly recommended !!

Wonderful Product !
For the first time Garmin is beginning to roll out 24K Topo maps on very convenient microSD cards. ( includes SD card adapter ) No computer needed, just put it in your unit and go. No fuss, no muss !

All I can say is it is about time !

They are starting with the western states and going east. If your state is not covered yet, please be patient. They are all coming.

This is the highest level of mapping detail available for your Garmin unit. They work best on the new Colorado and Oregon series units as you will see see 3-D views and color terrain shading on these units only. Very Nice !!

These are a must have for hikers, geocachers and any outdoor enthusiasts.

Highly recommended !!