There are two basic types of photos: Feature photos and in-line photos. The feature photos are the big photos, usually of a peak. They are inserted as a 2 stage process: first insert the photo record then upload the photo.
In-line photos are the ones in the body of trip reports and road bulletins. They are uploaded by using a "Upload Photo" link at the top of the report.
Photos can be automatically or manually resized. 2017.07.26
Upload Photo - to any type of Article
General instructions for uploading photos 2017.04.22
Upload Photo for Member Page
How to upload one or more photos 2014.08.08
Insert a Feature Photo
How to enter a large stand-alone photo, such as a large photo of a mountain. 2016.06.10
Upload photo to Trip Report
How to upload in-line photos to your trip reports. 2016.10.26
Make photo display on mountain page
How to cause a photo to appear on a mountain page. Link photo to mountain page. 2012.10.01
Find a Trip Report Id
When filling in a photo essay how do I get the Trip report Id? 2012.11.05